Heat the oil in a large saucepan over medium-high heat.,Add onion; saute 3 minutes or until tender.,Stir in curry paste; cook 1 minute.,Add 1/2 cup broth, carrot, ginger, red pepper, and garlic; cook 6 minutes or until carrot is tender, stirring occasionally.,Add 3 1/2 cups broth, lentils, and soybeans; bring to a boil.,______,Stir in cilantro, salt, and black pepper.,Divide evenly among 6 bowls; dollop with yogurt.,Garnish with cilantro sprigs, if desired.